$ git clone -n https://src.fedoraproject.org/rpms/rust-serde_path_to_error.git /var/lib/mock/f45-build-44873-818/root/chroot_tmpdir/scmroot/rust-serde_path_to_error
Cloning into '/var/lib/mock/f45-build-44873-818/root/chroot_tmpdir/scmroot/rust-serde_path_to_error'...
$ git fetch origin 4edecf508603acda0a4dd115983c99506147e553:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serde_path_to_error
 * [new ref]         4edecf508603acda0a4dd115983c99506147e553 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4edecf5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild